Posts Tagged ‘arduino’


March 22, 2010

On Friday, I wrote about the 74HC595 shift register.

I have since killed the register by connecting data to VIN (12V 500mA). While it was connected, the green LEDs (which expect 20mA) lit up orange! They still work, though.


Arduino blink sketch + shift register

March 19, 2010

I have a dead Arduino. It works, but I fried the FTDI chip, so I can’t upload new sketches. When I fried it, it had blink on it <.<.

I have discovered something cool, though. If you wire up a 74HC595 shift register the usual way, and connect data to pin 13, you get a cool ‘chase effect’. Experiment with other pins to see what cool stuff you can do.